Hip–Knee Joint Coordination Patterns are Associated With Patellofemoral Joint Cartilage Composition in Patients With Anterior Cruciate Ligament Reconstruction

Michael A. Samaan, Valentina Pedoia, Matthew S. Tanaka, Richard B. Souza, C. Benjamin Ma, Xiaojuan Li

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Joint coordination variability during walking that is associated with patellofemoral joint cartilage degeneration after anterior cruciate ligament reconstruction are not well understood. The purpose of this study was to assess between-limb differences in joint coordination variability and to determine the relationship of coordination variability with postoperative patellofemoral joint cartilage composition. Thirty-five patients underwent bilateral gait analysis and a magnetic resonance exam of the reconstructed knee joint at 6 months post anterior cruciate ligament reconstruction. Vector coding was used to assess coordination variability during the early (1%–33%), mid (34%–66%), and late (67%–100%) stance phase. The T1ρ/T2 mapping was used to evaluate the glycosaminoglycan–collagen matrix of the patellar and femoral trochlear cartilage. Compared with the uninjured limb, the reconstructed limb exhibited higher hip sagittal/knee sagittal plane coordination variability during midstance as well as higher knee sagittal/ankle sagittal plane coordination variability during both mid and late stance. The hip sagittal/knee sagittal plane coordination variability during midstance predicted 14.6% of the variance in patellar cartilage T1ρ values within the reconstructed limb. In addition, sex of participants was able to predict 32.4% and 13.7% of the variance in femoral trochlea T1ρ and T2 values, respectively. The study results demonstrate that a multijoint mechanism may be associated with early patellofemoral joint cartilage degeneration at 6 months after anterior cruciate ligament reconstruction.

Original languageEnglish
Pages (from-to)20-28
Number of pages9
JournalJournal of Applied Biomechanics
Volume38
Issue number1
DOIs
StatePublished - Feb 2022

Bibliographical note

Funding Information:
This study was supported by National Institutes of Health (P50-AR060752, R00-AR070902, K24-AR072133, and KL2-TR001996) and the American Orthopaedic Society for Sports Medicine. The content of this study is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health or the American Orthopaedic Society for Sports Medicine.

Publisher Copyright:
© 2022 Human Kinetics, Inc

Keywords

  • ACL-reconstruction
  • T1/T
  • gait
  • vector coding

ASJC Scopus subject areas

  • Medicine (all)

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